This circuit was found in a Texas Instruments documentation from the 1980s. The circuit monitors engine temperature by warning of engine warm-up and warning when the fan is on.
This circuit uses a general-purpose transistor and has waveform adjustment. We found it in an...
This 1 kW circuit was found in documentation from the 90s. The sensor is a thermistor, and the...
The purpose of this modified astable is to make the initial pulses have the same duration as the...